O Dia
| Type | Daily newspaper |
|---|---|
| Format | Broadsheet |
| Owner(s) | Grupo O Dia (Grupo Record) |
| Editor | Bruno Ferreira |
| Founded | 5 June 1951 |
| Headquarters | R. dos Inválidos, 198 - Centro, Rio de Janeiro, Brazil |
| Website | odia.ig.com.br |
O Dia (The Day) is a major daily newspaper in Rio de Janeiro, Brazil. Its sales are slightly higher than its main rival, O Globo. In August 2012, it was sold to Grupo Record.